157417880

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{8081}}^1$

素因数の和:8579

約数の個数: 32

約数和(自身を含む): 354961440

約数和(自身を除く): 197543560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 8081, 9740, 16162, 19480, 32324, 40405, 64648, 80810, 161620, 323240, 3935447, 7870894, 15741788, 19677235, 31483576, 39354470, 78708940, 157417880]

約数ペア:

[(1, 157417880), (2, 78708940), (4, 39354470), (5, 31483576), (8, 19677235), (10, 15741788), (20, 7870894), (40, 3935447), (487, 323240), (974, 161620), (1948, 80810), (2435, 64648), (3896, 40405), (4870, 32324), (8081, 19480), (9740, 16162)]